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Upscale Images

Integrate

Model id esrgan
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/esrgan?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Up to $0.518 per run charged by actual usage, the rest is refunded Run it on this page

Get API key
Open model Upscale #upscaling#high-res

Upscales an image by a factor of 1 to 8 with selectable Real-ESRGAN models and optional face mode

Open model · Image

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required image_url
Drop a file, or

Input image URL.

Advanced output_format · model · scale · tile · face
output_format default png

Format for the output image: png or jpeg.

default RealESRGAN_x4plus

Model selected for upscaling.

default 2

Image scaling factor.

default 0

Tile size to set when GPU memory is insufficient, for example 400 or 200; otherwise, the default 0 leaves tiling disabled.

POST /run/esrgan?wait=20 quote → $0.518
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/esrgan?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "image": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About Upscale Images

Enlarges the image at `image_url` using `scale` between 1 and 8. The `model` choice includes RealESRGAN x4plus, x2plus and anime variants, and `face` enables face upscaling. `tile` splits large images to reduce memory use. Output is png or jpeg.

Parameters

Send either the canonical name or the native name, not both. Canonical names

NameType DefaultAllowed Description
image_urlrequired image
Typeurl · image
Input image URL.
scaleoptional
Typenumber
Default2
1 – 8
Image scaling factor.
tileoptional
Typeinteger
Default0
Tile size to set when GPU memory is insufficient, for example 400 or 200; otherwise, the default 0 leaves tiling disabled.
faceoptional
Typeboolean
Defaultfalse
Controls face upscaling.
modeloptional
Typeenum
DefaultRealESRGAN_x4plus
RealESRGAN_x4plusRealESRGAN_x2plusRealESRGAN_x4plus_anime_6BRealESRGAN_x4_v3RealESRGAN_x4_wdn_v3RealESRGAN_x4_anime_v3
Model selected for upscaling.
output_formatoptional
Typeenum
Defaultpng
pngjpeg
Format for the output image: png or jpeg.
required Canonical name, also accepted

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "esrgan",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 518,
    "usd": "0.518",
    "charged": 518,
    "refunded": 0
  },
  "input": {
    "image_url": "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  },
  "output": {
    "image": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_name": "0-output.jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768
    }
  },
  "outputs": [
    {
      "type": "image",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
image
object {url, content_type, file_name, file_size, width, height}Image produced by upscaling.

For AI agents: this page as Markdown is at https://doitong.com/en-US/developers/models/esrgan.md. All models and guides: https://doitong.com/developers/llms.txt